/* Only the iframe scrolls. A fixed shell prevents iOS from panning the whole
   frame away from its header and exposing a second, empty area underneath. */
html{margin:0;padding:0;width:100%;height:100%;min-height:0;overflow:hidden;overscroll-behavior:none;background:var(--bg,#0b0f19)}
body.app-shell{position:fixed;top:var(--app-viewport-top,0px);left:0;margin:0;padding:0;width:100%;height:var(--app-viewport-height,100%);min-height:0;overflow:hidden;background:var(--bg,#0b0f19)}
.app-shell #appFrame{position:absolute;inset:0;display:block;border:0;width:100%;height:100%;min-height:0;background:transparent}
body.app-shell #radioBtn,body.app-shell #radioPanel{position:absolute}
body.app-shell.content-modal-open #radioBtn,body.app-shell.content-modal-open #radioPanel{visibility:hidden;pointer-events:none}
body.app-shell #radioPanel{max-height:calc(var(--app-viewport-height,100vh) - 112px)}
.app-shell #navigationStatus{position:absolute;top:12px;left:50%;transform:translateX(-50%);z-index:1100;padding:8px 16px;border-radius:20px;background:#1b2b43;color:#d9e5f5;font:12px var(--font-ui);box-shadow:0 3px 14px #0003}
.app-shell #navigationStatus[hidden]{display:none}
@media(max-width:600px){body.app-shell #radioPanel{max-height:calc(var(--app-viewport-height,100vh) - 84px - env(safe-area-inset-bottom))}}